e.g. clojure.test/is used as is will generate ({:name clojure.test, :type :ns}) as candidates.
This should result in adding [clojure.test :refer [is]] instead of just [clojure.test], https://github.com/clojure-emacs/clj-refactor.el/blob/f5295df68955c23fffd60718039fd386d13c77f5/clj-refactor.el#L2687-L2708 may act as inspiration